Resilient Bar Under Timber

Designed to offer improved acoustic insulation when constructing a conventional ceiling under timber joists. Resilient bar (RB565) acts as a spacer below the timber joist decoupling the plasterboard lining resulting in improved sound insulation. Mineral wool insulation can be included in the floor cavity to further improve acoustic performance.

• Single and double plasterboard layer configurations
• Minimum impact on floor to ceiling height

Framework Installation – Maximum load dependent on RB565 centres

To be read with reference to BS 8000:8 2023 and in conjunction with full Speedline / Tradeline project specific documentation which is created and available on request.

Metsec Drylining RB565 Resilient Bar (RB565) spaced at 400mm for 2400mm long plasterboard (35kg/m² max load) or 450mm centres for (30kg/m² max load) is secured to the underside of the timber joists with suitable fixings. Noggins of resilient bar RB565 must be fixed horizontally at room perimeter provide suitable framework for plasterboard perimeters.

Plasterboard Installation

Single Layer

Plasterboard must be fixed at 230mm maximum centres within the body and 150mm around the perimeter of the board.

Position drywall screws not less than 10mm from the paper bound edge of the plasterboard and 13mm from any cut edge. Ensure a minimum of 10mm penetration into the RB565.

Recess heads of drywall screws below surface of plasterboard but do not break paper or gypsum core.

Double Layer

Inner layer of plasterboard must be fixed at 230mm maximum centres within the body and 150mm around the perimeter of the board. The outer layer must also be fixed at 230mm maximum centres within the body and 150mm around the perimeter of the board.

All plasterboard joints on the outer layer must be staggered compared to the inner layer.

Position drywall screws not less than 10mm from the bound edge of the board and 13mm from any cut edge. Ensure a minimum of 10mm penetration into the RB565.

Recess heads of screws below surface of plasterboard but do not break paper or gypsum core.

The above is issued as a guide – full system specific documentation (dependent on required performance) is available on request.

Last updated 20/07/23

For more information or for details of your nearest stockist please contact us on +44 (0) 121 601 6075 or Metsec.DryLining@voestalpine.com.